Selected characteristics of the cohort and incident lung cancer patients
| Characteristics . | Cohort (n = 71,392) . | Lung cancer (n = 179) . | ||
|---|---|---|---|---|
| . | n (%) . | n (%) . | ||
| Age (y) | ||||
| 40-44 | 20,396 (28.6) | 17 (9.5) | ||
| 45-49 | 15,059 (21.1) | 22 (12.3) | ||
| 50-54 | 10,205 (14.3) | 21 (11.7) | ||
| 55-59 | 7,250 (10.2) | 23 (12.8) | ||
| 60-64 | 8,956 (12.5) | 37 (20.7) | ||
| 65+ | 9,526 (13.3) | 59 (33.0) | ||
| Educational level | ||||
| Elementary school or less | 14,562 (20.4) | 70 (39.1) | ||
| Middle school | 26,759 (37.5) | 52 (29.1) | ||
| High school | 20,206 (28.3) | 33 (18.4) | ||
| College or graduate school | 9,856 (13.8) | 24 (13.4) | ||
| Missing | 9 (0.01) | 0 (0.0) | ||
| Family income | ||||
| <¥10,000 | 11,190 (15.7) | 36 (20.1) | ||
| ¥10,000- | 27,290 (38.2) | 65 (36.3) | ||
| ¥20,000- | 20,213 (28.3) | 46 (25.7) | ||
| ¥30,000 | 12,683 (17.8) | 31 (17.3) | ||
| Missing | 16 (0.02) | 1 (0.6) | ||
| Passive smoking | ||||
| No | 9,053 (12.7) | 28 (15.6) | ||
| Yes | 57,334 (80.3) | 127 (70.9) | ||
| Missing | 5,005 (7.0) | 24 (13.4) | ||
| Alcohol consumption | ||||
| No | 70,008 (98.1) | 177 (98.9) | ||
| Yes | 1,384 (1.9) | 2 (1.1) | ||
| No. siblings | ||||
| 0 | 3,974 (5.6) | 16 (8.9) | ||
| 1 | 6,157 (8.6) | 15 (8.4) | ||
| 2 | 11,368 (15.9) | 34 (19.0) | ||
| 3 | 15,570 (21.8) | 36 (20.1) | ||
| 4 | 14,429 (20.2) | 32 (17.9) | ||
| 5+ | 19,894 (27.9) | 46 (25.7) | ||
| No. children | ||||
| 0 | 2,360 (3.3) | 7 (3.9) | ||
| 1 | 40,121 (56.2) | 55 (30.7) | ||
| 2 | 15,268 (21.4) | 50 (27.9) | ||
| 3 | 7,432 (10.4) | 41 (22.9) | ||
| 4 | 4,041 (5.7) | 17 (9.5) | ||
| 5+ | 2,172 (3.0) | 9 (5.1) | ||
| Characteristics . | Cohort (n = 71,392) . | Lung cancer (n = 179) . | ||
|---|---|---|---|---|
| . | n (%) . | n (%) . | ||
| Age (y) | ||||
| 40-44 | 20,396 (28.6) | 17 (9.5) | ||
| 45-49 | 15,059 (21.1) | 22 (12.3) | ||
| 50-54 | 10,205 (14.3) | 21 (11.7) | ||
| 55-59 | 7,250 (10.2) | 23 (12.8) | ||
| 60-64 | 8,956 (12.5) | 37 (20.7) | ||
| 65+ | 9,526 (13.3) | 59 (33.0) | ||
| Educational level | ||||
| Elementary school or less | 14,562 (20.4) | 70 (39.1) | ||
| Middle school | 26,759 (37.5) | 52 (29.1) | ||
| High school | 20,206 (28.3) | 33 (18.4) | ||
| College or graduate school | 9,856 (13.8) | 24 (13.4) | ||
| Missing | 9 (0.01) | 0 (0.0) | ||
| Family income | ||||
| <¥10,000 | 11,190 (15.7) | 36 (20.1) | ||
| ¥10,000- | 27,290 (38.2) | 65 (36.3) | ||
| ¥20,000- | 20,213 (28.3) | 46 (25.7) | ||
| ¥30,000 | 12,683 (17.8) | 31 (17.3) | ||
| Missing | 16 (0.02) | 1 (0.6) | ||
| Passive smoking | ||||
| No | 9,053 (12.7) | 28 (15.6) | ||
| Yes | 57,334 (80.3) | 127 (70.9) | ||
| Missing | 5,005 (7.0) | 24 (13.4) | ||
| Alcohol consumption | ||||
| No | 70,008 (98.1) | 177 (98.9) | ||
| Yes | 1,384 (1.9) | 2 (1.1) | ||
| No. siblings | ||||
| 0 | 3,974 (5.6) | 16 (8.9) | ||
| 1 | 6,157 (8.6) | 15 (8.4) | ||
| 2 | 11,368 (15.9) | 34 (19.0) | ||
| 3 | 15,570 (21.8) | 36 (20.1) | ||
| 4 | 14,429 (20.2) | 32 (17.9) | ||
| 5+ | 19,894 (27.9) | 46 (25.7) | ||
| No. children | ||||
| 0 | 2,360 (3.3) | 7 (3.9) | ||
| 1 | 40,121 (56.2) | 55 (30.7) | ||
| 2 | 15,268 (21.4) | 50 (27.9) | ||
| 3 | 7,432 (10.4) | 41 (22.9) | ||
| 4 | 4,041 (5.7) | 17 (9.5) | ||
| 5+ | 2,172 (3.0) | 9 (5.1) | ||